Write-up: This case was reported by a physician in the frame of a study and described the occurrence of intussusception in a 7-month-old male subject who was vaccinated with ROTARIX (GlaxoSmithKline). Previous and/or concurrent vaccination included DTPa-IPV-HIB; manufacturer unspecified; intramuscular given on 9 June 2008; hepatitis B vaccine recombinant: manufacturer unspecified; intramuscular given on 9 June 2008; and ROTARIX (GlaxoSmithKline, oral) given on 11 February 2008. Previously the subject was healthy. On 16 April 2008 the subject received 2nd dose of ROTARIX (oral). On 9 July 2008, 84 days after vaccination with ROTARIX, the subject experienced abdominal distension, hyporexia, vomiting (4 times) and current jelly stools. On 19 July 2008 the subject was admitted and physical examination reported asthenia, adynamia, pallor, dehydration, hyperemic pharynx, abdominal sausage shaped mass, abdominal distension, absence of bowel sound and generalized abdominal pain. Relevant test included abdominal x-ray which showed distended loops, lack of distal air and bad air distribution. The diagnosis of intussusception was done and it was resolved by air enema without complications. After full recovery the subject was discharged on 13 July 2008 in good conditions. The subject was hospitalised for 4 days. The subject was treated with enema, metronidazole, amikacin and Ranitidine. The physician considered the events were unrelated to vaccination with ROTARIX.